#include <iostream>
using namespace std;
class CRectangle 
{
	int w,h;
public:
	void setValues (int a, int b);
	int area ();
};
void CRectangle::setValues(int a, int b)
{
	w=a;
	h=b;
}
int CRectangle::area ()
{
	return (w*h);
}
int main ()
{
	CRectangle recta;
	recta.setValues (3,4);
	CRectangle*rectb;
	rectb = &recta;
	rectb ->setValues (3,9);
	cout <<"area:"<<recta.area();
	cout<<"area:"<<rectb->area();
	CRectangle *rectc = new CRectangle ();
	rectc-> setValues (5,6);
	rectb= rectc;
	rectc-> setValues (7,8);
	cout<<"area:"<<rectb->area();
	cout<<"area:"<<rectc->area();
	delete rectb;
	delete rectc;
	return 0;
}